The noise-reducing and slow-closing check valve produced by Beixiao Safety Equipment Co., Ltd. is an intelligent valve installed at the water pump outlet of the high-rise building water supply system and other water supply systems to prevent water flow backflow, water hammer impact and water hammer. The valve has two functions of the check valve water hammer eliminator, which can effectively improve the safety and reliability of the water supply system. In addition, the valve will also integrate the technical principles of slow opening, quick closing and slow closing to eliminate water hammer, and prevent water hammer from being generated when the pump is turned on and when the pump is stopped.
The main function
The slow-closing silencer check valve produced by our company is a hydraulically operated valve. The adjusted valve automatically opens or closes the piping system. The control reaction is accurate, the valve closing speed is adjustable, the valve can be smoothly closed without pressure fluctuation, and the water hammer pressure and noise are reduced. The valve is simple in structure, light in weight, and convenient in operation and maintenance. The rated working pressure is 1.6MPa. It can be installed horizontally or vertically. Widely used in the pipelines of water systems for water supply, fire protection and industrial and mining enterprises, it is an indispensable equipment for water supply systems to protect the safe water of their branch systems.
working principle
The working principle of the slow-closing muffler check valve is to use the fluid as a medium to achieve a check valve that automatically closes the muffler off. When the water supply chamber of the valve supplies water, the pressure water slowly enters the control chamber through the adjusted needle valve. At this time, the water in the control chamber is automatically discharged to the valve working chamber, the control chamber is not pressurized, and the valve opens the water supply. When the working chamber reaches the set water pressure, since the water supply chamber and the working chamber are slowly supplied to the control chamber at the same time, the control chamber is boosted and the valve is slowly closed. When the working chamber pressure is reduced, the control chamber pressure is slowly lowered and the valve is slowly opened again.
Rated working pressure: 1.6 MPa Material: Ductile iron QT450-10 / Stainless steel 304 tube Line Medium: Water environment Temperature: 4～60°C Dimensions
Installation and commissioning
1. Please install according to the direction of the valve body arrow
2. Please read the instruction manual and piping diagram carefully before installation.
3. There should be enough maintenance space around the installation location.
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1. When ordering the check valve, please indicate the product name, model, specification, quantity and delivery date in the order.
2. This product includes: one set of check valves, one instruction manual and one certificate.
3. If the pipeline medium is not clean water, please inform relevant information in advance;
4. During the transportation process, attention should be paid to rain protection, and strong impact should be prevented during loading and unloading.
5. The check valve should be stored in a ventilated and dry warehouse to avoid storage with corrosive substances.
6, suitable for storage in the temperature of 4 ~ 60 ° C environment.